noaa-cave-8636
Cheng et al. 2009 Sanbao and Linzhu Caves Glacial Terminations d18O Data
Cheng, H.; Edwards, R.L.; Broecker, W.S.; Denton, G.H.; Kong, X.; Wang, Y.; Zhang, R.; Wang, X.
Cheng et al. 2009 Sanbao and Linzhu Caves Glacial Terminations d18O Data
2009-07-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/8636
Investigator
H.
Cheng
Investigator
R.L.
Edwards
Investigator
W.S.
Broecker
Investigator
G.H.
Denton
Investigator
X.
Kong
Investigator
Y.
Wang
Investigator
R.
Zhang
Investigator
X.
Wang
earth science
paleoclimate
speleothems
depth,null,null,millimeter,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
speleothems
age,null,null,calendar kiloyear before present,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
oxygen isotopes
geoscientificInformation
-385000 AD
-125150 AD
386950 cal yr BP
127100 cal yr BP
Complete
31.516
31.667
110.316
110.433
780
1900
Continent
Asia
Eastern Asia
China
Linzhu Cave>LATITUDE 31.516>LONGITUDE 110.316
Continent
Asia
Eastern Asia
China
Sanbao Cave>LATITUDE 31.667>LONGITUDE 110.433
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
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CO
80305-3328
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online
ASCII
Cheng, H., Edwards, R.L., Broecker, W.S., Denton, G.H., Kong, X., Wang, Y., Zhang, R., Wang, X. 2009. Ice Age Terminations. Science, 326, 248-251.
230Th-dated oxygen isotope records of stalagmites from Sanbao Cave, China, characterize Asian Monsoon (AM) precipitation through the ends of the third- and fourthmost recent ice ages. As a result, AM records for the past four glacial terminations can now be precisely correlated with those from ice cores and marine sediments, establishing the timing and sequence of major events. In all four cases, observations are consistent with a classic Northern Hemisphere summer insolation intensity trigger for an initial retreat of northern ice sheets. Meltwater and icebergs entering the North Atlantic alter oceanic and atmospheric circulation and associated fluxes of heat and carbon, causing increases in atmospheric CO2 and Antarctic temperatures that drive the termination in the Southern Hemisphere. Increasing CO2 and summer insolation drive recession of northern ice sheets, with probable positive feedbacks between sea level and CO2.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/sanbao-linzhu2009.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11